A nanodisplacement control console for time synchronization calibration of pulsed lasers

By using pre-tightening components and cold air cooling measures in the nano-displacement control console, the problem of reduced positioning accuracy of piezoelectric ceramics under a constant electric field for a long time was solved, and high-precision and stable displacement control was achieved.

CN224438843UActive Publication Date: 2026-06-30迅衡(天津)光电科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
迅衡(天津)光电科技有限公司
Filing Date
2025-05-16
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Under the action of a constant electric field for a long time, the positioning accuracy of the nano-displacement stage decreases. The performance of piezoelectric ceramics is greatly affected by temperature. Changes in ambient temperature cause changes in the piezoelectric coefficient, which affects the displacement output.

Method used

The push rod in the pre-tightening assembly uses a return spring inside to keep the positioning plate pressing the piezoelectric ceramic body in a pre-compression state. Combined with the displacement sensor, the system monitors in real time and feeds back the signal to the control system, forming a closed-loop control. At the same time, cold air is blown out through the delivery pipe to reduce the temperature of the piezoelectric ceramic and reduce thermal deformation.

Benefits of technology

It improves the linearity and stability of the nanostage, reduces nonlinear errors, extends service life, and maintains high-precision displacement control.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a nano-displacement console for time synchronization calibration of a pulsed laser, relating to the technical field of nano-displacement consoles. It includes a stage body with two conductive frames fixedly installed inside. Each pre-tightening component is disposed on the inner wall of a conductive frame. Each pre-tightening component includes a positioning plate, a resistance pad, a straightening strip, and a push rod. Each push rod and positioning plate are modularly structured, and each push rod has a sleeve-like structure. A return spring is fixedly installed inside each push rod. A pump introduces cold air into a delivery pipe connected to the conductive frames. Multiple jet nozzles at the top end of the delivery pipe blow cold air towards the piezoelectric ceramic body and the two positioning plates. The cold air lowers the temperature of the piezoelectric ceramic body and other components, reducing thermal deformation, ensuring the structural stability of the nano-displacement stage, improving the working environment of the piezoelectric ceramic, reducing aging rate, and extending service life.
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